MCP25020-E/SL - 8-Input CAN I/O Expander | Microchip
MPN: MCP25020-E/SL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
MCP25020-E/SL Overview
A CAN I/O expander is an interface IC that connects digital sensors, switches, actuators, and PWM-controlled loads to a Controller Area Network. It belongs to the interface-IC hierarchy and reduces the number of host-controller pins required for remote I/O. The MCP25020 combines CAN communication with programmable digital I/O, making it useful when a central controller must monitor inputs and drive outputs across a vehicle or equipment network.
According to the verified Microchip and distributor data, the device supports CAN V2.0B active operation, programmable bit rates up to 1 Mb/s, up to eight digital I/O channels, and up to two user-configurable PWM outputs. A third-party listing identifies a 25 MHz clock, while another identifies a 4.5 V to 5.5 V supply range for a related package listing. These values should be confirmed against the exact ordering code and manufacturer datasheet before design release.
The CAN interface provides one programmable mask, two programmable filters, and three automatic transmit buffers, while two reception buffers are also identified in the supplied technical summary. These functions support message filtering and node-based CAN traffic management. The device is intended for systems that need remote I/O expansion without allocating every connected line directly to the main microcontroller.
Typical uses include automotive body and comfort modules, equipment control panels, actuator distribution, digital sensor nodes, and CAN-connected industrial controls. The eight digital lines can represent switches, interlocks, or status signals, while the PWM outputs can support compatible loads when their electrical limits meet the design requirements.
PCB implementation should preserve the manufacturer-recommended CAN termination and decoupling layout, keep high-current outputs away from sensitive input nodes, and validate every external pin function against the exact datasheet. Because the verified data contains conflicting package references, engineers should treat the 14-SOIC designation as the controlling package reference and confirm mechanical drawings before layout.
This page consolidates the supplied manufacturer, distributor, and cross-reference results, separates verified facts from missing parameters, and provides selection guidance focused on package compatibility, CAN performance, I/O count, and sourcing constraints.
Drop-in alternatives for MCP25020-E/SL — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MCP25020-E/SL (same form factor and footprint) — differing in Package, Mounting Type, Product Type, PWM Outputs, Supply Voltage.
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MCP25020T-E/SL
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MCP25020-I/SL
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$1.41 / Unit
View Datasheet →MCP25020-I/P
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View Datasheet →MCP25020-E/SL Specifications
| Product Type | CAN input/output expander |
| CAN Standard | CAN V2.0B active |
| Maximum CAN Bus Rate | 1 Mb/s |
| Number of Digital I/O Inputs | 8 |
| Number of PWM Outputs | Up to 2, configurable by the user |
| Clock Frequency | 25 MHz |
| Supply Voltage | 4.5 V to 5.5 V |
| Package | 14-pin SOIC |
| CAN Programmable Bit Rate | Programmable up to 1 Mb/s |
| Programmable Mask | 1 |
| Programmable Filters | 2 |
| Automatic Transmit Buffers | 3 |
| Reception Buffers | 2 |
| Temperature Grade | Automotive |
| Mounting Type | Surface mount |
| Terminal Count | 14 terminals |
| Terminal Form | Gull wing |
| Package Shape | Rectangular |
MCP25020-E/SL rectangular Pin Configuration Guide
Pin configuration for MCP25020-E/SL (rectangular package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for MCP25020-E/SL.
Refer to the datasheet for full pin configuration.
Typical Applications
MCP25020-E/SL is suitable for 7 applications: Automotive Body Control Module, CAN-Connected Sensor Node, Actuator and Lamp Control, Industrial Control Panel Interface, Motorized Equipment Interface, CAN Gateway Peripheral Expansion, Remote Diagnostics Module.
Automotive Body Control Module
The MCP25020-E/SL fits an automotive body-control node that needs to combine CAN communication with local digital I/O and up to two configurable PWM outputs. Its eight I/O lines can represent switches, status inputs, lamps, or actuator-control signals, while the 1 Mb/s CAN capability supports higher-speed network segments when the physical layer and bit timing are designed accordingly. The reported automotive temperature grade is useful for vehicle environments, but the supplied material does not confirm AEC-Q100 qualification, so qualification documentation remains a release requirement. A robust design should validate all output drive limits and fault states against the exact MCP25020E/SL datasheet.
Recommended
CAN-Connected Sensor Node
Use the MCP25020-E/SL as a remote interface node when a central controller must collect several discrete sensor states over a CAN network instead of wiring every signal back to the host. Eight digital I/O inputs provide a compact way to aggregate limit switches, interlocks, presence indicators, and binary sensor outputs. The active CAN V2.0B interface and reported maximum rate of 1 Mb/s provide a defined communication target, while programmable filters and a mask can reduce unnecessary receive traffic. Exact input thresholds, debounce behavior, and electrical limits are not present in the verified data and must be checked from the manufacturer datasheet before implementation.
Recommended
Actuator and Lamp Control
The MCP25020-E/SL can distribute digital actuator-control tasks in a CAN-connected vehicle or industrial equipment node. Eight I/O channels provide a flexible mix of discrete outputs and inputs, while the verified family description reports up to two user-configurable PWM outputs for compatible timing-based loads. This can reduce the host controller's direct pin burden for lamps, solenoids, valves, or other controlled elements. Because the supplied data does not specify output current, voltage levels, PWM frequency, duty-cycle resolution, or short-circuit behavior, the device should be selected only after those limits are verified and protected by suitable application circuitry.
Recommended
Industrial Control Panel Interface
The MCP25020-E/SL is suitable for an industrial control-panel node that needs remote I/O behind a CAN backbone. Eight digital lines can collect pushbutton states, selector positions, interlocks, and equipment-status signals, while the CAN interface communicates those states to a supervisory controller. The device's reported 1 Mb/s capability can accommodate network segments designed for that rate, although actual bus reach and electromagnetic behavior depend on the complete CAN physical layer. Use the programmable mask and filters as intended, and confirm the exact pinout and logic thresholds from the manufacturer documentation before laying out the panel PCB.
Recommended
Motorized Equipment Interface
For equipment that distributes motor, valve, or auxiliary actuator commands over CAN, the MCP25020-E/SL can act as a local I/O endpoint. The eight digital I/O channels provide command and status paths, and the reported two configurable PWM outputs may suit compatible low-power timing functions. The device should not be assumed to drive high-current motors directly because the supplied data gives no output-current rating or protection details. Use the MCP25020 as the network I/O controller, then add appropriately rated driver stages, flyback protection, and fault handling based on the load characteristics.
Recommended
CAN Gateway Peripheral Expansion
The MCP25020-E/SL can extend a gateway or controller with discrete I/O while retaining a CAN connection to other network nodes. This arrangement is useful when the gateway must translate or supervise a mixed set of switches, indicators, and actuator-control signals. Its active CAN V2.0B support, reported 1 Mb/s maximum rate, programmable mask, and two filters provide the basic communication framework for selective message handling. The supplied evidence does not establish a complete standalone transceiver or regulator function, so the design must include the appropriate CAN physical-layer components and verify all digital signal levels against the exact datasheet.
Recommended
Remote Diagnostics Module
A remote diagnostics module can use the MCP25020-E/SL to collect binary equipment states and publish them over CAN while also accepting digital control commands. The eight I/O channels make it suitable for gathering a group of related signals without expanding the main controller's pin count. The programmable receive filters and mask can help the node respond to selected identifiers, while the reported three automatic transmit buffers support periodic or event-driven CAN transmission. Exact diagnostic message identifiers, fault behavior, and watchdog functions are not stated in the supplied data, so those features must be confirmed from the manufacturer documentation.
Recommended
Recommended Products Summary
Engineering reference data for MCP25020-E/SL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MCP25020T-E/SL | MCP25020-I/SL | MCP25020-I/P |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-SOIC | 14-SOIC related listing | 14-SOIC related listing | 14-SOIC related listing |
| Interface | CAN I/O expander | CAN V2.0B I/O expander | Related MCP25020 I/O expander | Related MCP25020 I/O expander |
Key Differentiators
- Integrated CAN communication with local I/O expansion (vs MCP25020T-E/SL)
- User-configurable PWM capability (vs MCP25020-I/SL)
- Message filtering resources (vs MCP25020-I/P)
Design Notes
Use the exact MCP25020E/SL package drawing before placing the 14-SOIC footprint. The supplied results consistently identify a 14-SOIC-related product, but one third-party snippet incorrectly labels the package as 14-DIP. Confirm pad length, lead pitch, pin numbering, and exposed-pin assignments from Microchip documentation, then verify the PCB footprint with the assembled mechanical drawing.
Do not assume that the MCP25020 is a complete CAN transceiver or that its digital outputs can safely drive high-current loads. The verified data establishes CAN I/O expansion, eight digital I/O channels, and up to two configurable PWM outputs, but does not provide output-current, protection, or PWM-resolution limits. Add suitable driver stages, flyback protection, and fault recovery after checking the exact electrical characteristics.
Keep CAN routing and digital I/O routing physically separated where practical, and follow the manufacturer layout guidance for decoupling and exposed or sensitive pins. CAN bus behavior depends on termination, transceiver selection, timing, and board-level electromagnetic compatibility; the reported 1 Mb/s capability does not guarantee reliable operation on an arbitrary bus. Validate signal integrity with the final transceiver, cable, connector, and grounding arrangement.
The supplied specification lists a 4.5 V to 5.5 V supply range for one MCP25020 listing, but the exact ordering code and package variant should be checked against the manufacturer datasheet. Provide local decoupling close to the device, keep supply routing short, and verify the voltage tolerance of every connected I/O and CAN companion before finalizing the power tree.
Compliance Information
The supplied results identify automotive temperature grade for MCP25020-E/SL but do not explicitly provide RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements. Compliance values are therefore unknown rather than assumed.